Carotid Endarterectomy Guidelines

Indications and Benefits

The American College of Cardiology recommends carotid endarterectomy (CEA) for patients with recent transient ischemic attack (TIA) or non-disabling stroke and 70-99% stenosis, with urgent performance ideally within the first few days and no later than 14 days after the ischemic event 1, 2
For patients with 50-69% stenosis, CEA provides moderate benefit with an absolute risk reduction of 4.6% at 5 years, though the benefit is smaller than with severe stenosis 1, 2
The American Heart Association suggests that the perioperative stroke/death rate must be <6% for symptomatic patients to maintain a favorable benefit-risk ratio 1, 2
For asymptomatic patients with 60-99% stenosis, CEA may be considered only if the perioperative stroke/death rate is <3% 1
The patient must have a life expectancy of more than 5 years to realize the benefit of CEA 1
The absolute risk reduction with CEA is approximately 1% per year (from 2% to 1% annual stroke risk) in asymptomatic patients 2

CEA is definitively superior to carotid artery stenting (CAS) in patients over 70 years old, with a stroke risk of 1% for CEA versus 3% for CAS 1, 3, 4
Current evidence demonstrates that CAS carries higher periprocedural stroke and death rates in older patients 1

CEA demonstrates better periprocedural stroke outcomes, with a nationwide data showing in-hospital stroke rate for asymptomatic patients undergoing CAS was 2-fold higher than CEA 3, 4
CEA has a mortality rate of 0.44% and a stroke rate of 0.95% in large registry data 3, 4
The American College of Cardiology recommends CEA particularly for patients with calcified plaques 5

The combined perioperative stroke and death rate must be <6% for symptomatic patients and <3% for asymptomatic patients to maintain a favorable benefit-risk ratio 1, 2
Centers must routinely audit their performance results to ensure quality benchmarks are met 1, 2

Pooled data from three major trials for symptomatic severe stenosis (70-99%) demonstrated CEA provides 16% absolute risk reduction at 5 years compared to medical management alone (NNT=6) 2

The American Heart Association recommends continuation of intensive medical therapy, including statins, antihypertensives, and diabetes control, for all patients undergoing CEA 5